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path: root/drivers/net/mlx4/main.c
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Diffstat (limited to 'drivers/net/mlx4/main.c')
-rw-r--r--drivers/net/mlx4/main.c106
1 files changed, 79 insertions, 27 deletions
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index 6ef2490d5c3e..a66f5b2fd288 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -51,6 +51,8 @@ MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(DRV_VERSION);
+struct workqueue_struct *mlx4_wq;
+
#ifdef CONFIG_MLX4_DEBUG
int mlx4_debug_level = 0;
@@ -98,24 +100,23 @@ module_param_named(use_prio, use_prio, bool, 0444);
MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
"(0/1, default 0)");
-static int mlx4_check_port_params(struct mlx4_dev *dev,
- enum mlx4_port_type *port_type)
+int mlx4_check_port_params(struct mlx4_dev *dev,
+ enum mlx4_port_type *port_type)
{
int i;
for (i = 0; i < dev->caps.num_ports - 1; i++) {
- if (port_type[i] != port_type[i+1] &&
- !(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
- mlx4_err(dev, "Only same port types supported "
- "on this HCA, aborting.\n");
- return -EINVAL;
+ if (port_type[i] != port_type[i + 1]) {
+ if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
+ mlx4_err(dev, "Only same port types supported "
+ "on this HCA, aborting.\n");
+ return -EINVAL;
+ }
+ if (port_type[i] == MLX4_PORT_TYPE_ETH &&
+ port_type[i + 1] == MLX4_PORT_TYPE_IB)
+ return -EINVAL;
}
}
- if ((port_type[0] == MLX4_PORT_TYPE_ETH) &&
- (port_type[1] == MLX4_PORT_TYPE_IB)) {
- mlx4_err(dev, "eth-ib configuration is not supported.\n");
- return -EINVAL;
- }
for (i = 0; i < dev->caps.num_ports; i++) {
if (!(port_type[i] & dev->caps.supported_type[i+1])) {
@@ -225,6 +226,9 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
else
dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
+ dev->caps.possible_type[i] = dev->caps.port_type[i];
+ mlx4_priv(dev)->sense.sense_allowed[i] =
+ dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO;
if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
dev->caps.log_num_macs = dev_cap->log_max_macs[i];
@@ -263,14 +267,16 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
* Change the port configuration of the device.
* Every user of this function must hold the port mutex.
*/
-static int mlx4_change_port_types(struct mlx4_dev *dev,
- enum mlx4_port_type *port_types)
+int mlx4_change_port_types(struct mlx4_dev *dev,
+ enum mlx4_port_type *port_types)
{
int err = 0;
int change = 0;
int port;
for (port = 0; port < dev->caps.num_ports; port++) {
+ /* Change the port type only if the new type is different
+ * from the current, and not set to Auto */
if (port_types[port] != dev->caps.port_type[port + 1]) {
change = 1;
dev->caps.port_type[port + 1] = port_types[port];
@@ -302,10 +308,17 @@ static ssize_t show_port_type(struct device *dev,
struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
port_attr);
struct mlx4_dev *mdev = info->dev;
+ char type[8];
+
+ sprintf(type, "%s",
+ (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
+ "ib" : "eth");
+ if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
+ sprintf(buf, "auto (%s)\n", type);
+ else
+ sprintf(buf, "%s\n", type);
- return sprintf(buf, "%s\n",
- mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB ?
- "ib" : "eth");
+ return strlen(buf);
}
static ssize_t set_port_type(struct device *dev,
@@ -317,6 +330,7 @@ static ssize_t set_port_type(struct device *dev,
struct mlx4_dev *mdev = info->dev;
struct mlx4_priv *priv = mlx4_priv(mdev);
enum mlx4_port_type types[MLX4_MAX_PORTS];
+ enum mlx4_port_type new_types[MLX4_MAX_PORTS];
int i;
int err = 0;
@@ -324,26 +338,56 @@ static ssize_t set_port_type(struct device *dev,
info->tmp_type = MLX4_PORT_TYPE_IB;
else if (!strcmp(buf, "eth\n"))
info->tmp_type = MLX4_PORT_TYPE_ETH;
+ else if (!strcmp(buf, "auto\n"))
+ info->tmp_type = MLX4_PORT_TYPE_AUTO;
else {
mlx4_err(mdev, "%s is not supported port type\n", buf);
return -EINVAL;
}
+ mlx4_stop_sense(mdev);
mutex_lock(&priv->port_mutex);
- for (i = 0; i < mdev->caps.num_ports; i++)
+ /* Possible type is always the one that was delivered */
+ mdev->caps.possible_type[info->port] = info->tmp_type;
+
+ for (i = 0; i < mdev->caps.num_ports; i++) {
types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
- mdev->caps.port_type[i+1];
+ mdev->caps.possible_type[i+1];
+ if (types[i] == MLX4_PORT_TYPE_AUTO)
+ types[i] = mdev->caps.port_type[i+1];
+ }
- err = mlx4_check_port_params(mdev, types);
+ if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
+ for (i = 1; i <= mdev->caps.num_ports; i++) {
+ if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
+ mdev->caps.possible_type[i] = mdev->caps.port_type[i];
+ err = -EINVAL;
+ }
+ }
+ }
+ if (err) {
+ mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
+ "Set only 'eth' or 'ib' for both ports "
+ "(should be the same)\n");
+ goto out;
+ }
+
+ mlx4_do_sense_ports(mdev, new_types, types);
+
+ err = mlx4_check_port_params(mdev, new_types);
if (err)
goto out;
- for (i = 1; i <= mdev->caps.num_ports; i++)
- priv->port[i].tmp_type = 0;
+ /* We are about to apply the changes after the configuration
+ * was verified, no need to remember the temporary types
+ * any more */
+ for (i = 0; i < mdev->caps.num_ports; i++)
+ priv->port[i + 1].tmp_type = 0;
- err = mlx4_change_port_types(mdev, types);
+ err = mlx4_change_port_types(mdev, new_types);
out:
+ mlx4_start_sense(mdev);
mutex_unlock(&priv->port_mutex);
return err ? err : count;
}
@@ -1117,6 +1161,9 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
if (err)
goto err_port;
+ mlx4_sense_init(dev);
+ mlx4_start_sense(dev);
+
pci_set_drvdata(pdev, dev);
return 0;
@@ -1182,6 +1229,7 @@ static void mlx4_remove_one(struct pci_dev *pdev)
int p;
if (dev) {
+ mlx4_stop_sense(dev);
mlx4_unregister_device(dev);
for (p = 1; p <= dev->caps.num_ports; p++) {
@@ -1230,6 +1278,8 @@ static struct pci_device_id mlx4_pci_table[] = {
{ PCI_VDEVICE(MELLANOX, 0x673c) }, /* MT25408 "Hermon" QDR PCIe gen2 */
{ PCI_VDEVICE(MELLANOX, 0x6368) }, /* MT25408 "Hermon" EN 10GigE */
{ PCI_VDEVICE(MELLANOX, 0x6750) }, /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
+ { PCI_VDEVICE(MELLANOX, 0x6372) }, /* MT25458 ConnectX EN 10GBASE-T 10GigE */
+ { PCI_VDEVICE(MELLANOX, 0x675a) }, /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
{ 0, }
};
@@ -1264,9 +1314,11 @@ static int __init mlx4_init(void)
if (mlx4_verify_params())
return -EINVAL;
- ret = mlx4_catas_init();
- if (ret)
- return ret;
+ mlx4_catas_init();
+
+ mlx4_wq = create_singlethread_workqueue("mlx4");
+ if (!mlx4_wq)
+ return -ENOMEM;
ret = pci_register_driver(&mlx4_driver);
return ret < 0 ? ret : 0;
@@ -1275,7 +1327,7 @@ static int __init mlx4_init(void)
static void __exit mlx4_cleanup(void)
{
pci_unregister_driver(&mlx4_driver);
- mlx4_catas_cleanup();
+ destroy_workqueue(mlx4_wq);
}
module_init(mlx4_init);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.